Exodus 12:12-14

New Revised Standard Version Updated Edition

¹² I will pass through the land of Egypt that night, and I will strike down every firstborn in the land of Egypt, from human to animal, and on all the gods of Egypt I will execute judgments: I am the Lord.^{(A) 13} The blood shall be a sign for you on the houses where you live: when I see the blood, I will pass over you, and no plague shall destroy you when I strike the land of Egypt.

¹⁴ “This day shall be a day of remembrance for you. You shall celebrate it as a festival to the Lord; throughout your generations you shall observe it as a perpetual ordinance.^(B)